Mining machine



April 14, 1931. C F, osGooD MINING MACHINE Original Filed June 18, 1923 @www ,Q

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Patented Apr. 14, 1931 UNITED STATES PATENT oFFlcE F. OSGOOD, OF CLAREMONT, NEW HAMPSHIRE, ASSIGNOR T0 SULLIVAN MA- Y CHINERY COMPANY, A CORPORATION OF MASSACHUSETTS MINING MACHINE Original application-Med June 18, 1923, Serial No. 646,001. Divided and this application filed January 19, 1925. Serial No. 3,487.

My invention relates to mining machines and more Vparticularly to mining machines of vthe flexibly fed type.

An object of my invention is to provide an improvedvmining machine. Another object of my invention is to provide an improved mining machine feeding means including feed operating and takeup mechanisms on the machine. A still further object of my invention is to provide an improved mining machine of the room and pillar type wherein improved means areprovided for feeding and controlling the machine during cutting.l A still further object of my invention is to provide an improved mining machine wherein the same may be fed in opposite directions during cutting without reversing the driving motor. Still another object of my invention is to provide an improved mining machine wherin improved transmission means are provided between the driving motor and the feed and takeup members whereby a more flexiblev operation ofxthe machine is obtained. These and other objects and advantages of my invention will, however, hereinafter more fully appear. i 1

In the accompanying 'drawings I have sho-wn for purposes of illustration one form which my invention may assume in practice.

In these drawings, Fig. 1 is a plan view, Vpartially in section, offa mining machine of the room and pillar v type incorporatingmy improved mechanism.

Fig. 2 is a side elevation of the receding side-of the machine shown in Fig. l.

Fig. 3 is a partial side elevation of the advancing portion of the'machine shown in Fig. 1. Y

In this illustrative formof my invention, which is a division of my copending application Ser. No. 646,001iiled June 18, 1923, I have shown a mining machine comprising a machine frame 1 adapted to slide on its bottom 2 on the mine bottom laterally relative u to a flexible feeding means of anysuitable form preferably adapted to provide advance `and receding portions, herein in the forni of a chain 3, and having a rigid cutter bar 4 projecting longitudinally therefrom at the front end thereof and a cutter bit 'carrying cutter chain 5 is ada ted to be circulated about the l l bar in a well Known manner. r a

Referring more particularly to the machine it will be noted that an electric motor 6 is disposed transversely of the front end of` .in the above mentioned copending application, and other driving connections are provided between tlie motor and a usual cutter Ach ain driving sprocket 7 located beneath the Arear ofthe machine and drivingthe cutter chain 5 on the bar 4. Referring more specifically to these connections it will be noted that herein the motor armature shaft carries a single pinion 8 meshing with an intermediate spur gear 9 suitably journaled on a transverse axis in the machine frame and in turn meshing with a like spur gearlO keyed to a transverse shaft 11 disposed between the motor and the feeding mechanism previously mentioned. As illustrated, this shaft 11 is suitably journaled at its opposite ends in the opposite sides of the frame and carries a plurality of bevel pinions 12 and 13 adapted to cooperate selectively with an upstanding bevel gear 14 operativel connected to the cutterv chain driving sprocket 7, the direction of rotation of the latter depending upon the position of a clutch member 15 splined to the shaft and having clutch teeth at opposite ends adapted to alternatively engage the members 12 and 13. Thus it will be evident when the position of the member 15 is adjusted by a suitable clutch controlling mechanism 16 it is possible to drive or disconnect the cutter chain 5 whenever desired or to rotate the cutter chain in different directions without reversing the direction of the motor.

Operatively connected to the shaft 11 so as to be driven thereby when desired and whether the cutting mechanism is operating or thrown out of operation is `the feeding mechanism previously mentioned. In this construction it will be noted that apinion 17 is keyed to the shaft 11 and meshes directly with the fast feed gear 18 of the feeding (Lil) Q is ` ribto the left hand ribto make a roomand pillar outfit will be noted thatthe advancing w mechanism keyed, as at 19, to a suitable sleeve 20 disposed coaXially with a transverse shaft 21 disposed parallel with andin the rear of the shaft 11. The gear 18 is adapted to drive the shaft 21 through a suitable friction clutch v mechanism, generally designated V22, at a fast or haulage speed.l It will also be noted that end ofthe shaft 11 opposite from the gear 10` has keyed thereto. a pinion 23`which meshes with a spur gear 24'freely rotatable on the shaft 21 and which has secured thereto and rotatable `therewith a pinion 25 which -meshes witha-spur gear 26 journaled on the shaft 11 between the bevel gear 13 andthe pinion 23 and this gear has secured theretoV androtatableV therewith a pinion 27 which meshes with a spur gear Y28 keyed, as at 29, to a sleeve 30? rotatable upon the shaft 21. rlhe gea-P28 is adapted to Vdrive the shaft 21 through a suitable friction clutch mechanism,

generally designated 31, ata slow or cutting speed. rlhe friction clutches 22 and 31 are hereinundier control' of a shipper 32 operated by a lever-'33 on the rearend of the machine frame. Further it will be noted that detachably secured to oppositev ends ofV the transverse shaft 21 as by'suitable jaw clutches 34 and operated by level-S36 and'3? is a feed yoperating member 38 and a takeup member 39.' lFrom'the foregoing description it will beV Y "clearly evident that the members 38 and 39 may l'be'driven'from the motor in vone direcvrtion at fast or slow speeds simultaneously or independently Aand' that a variationy of these speeds may be vobtained by the varying of the amount of application of the clutches22 and 31. rlhe members 38 and 39 herein also have drum members 40 and 41 respectively secured thereto provided with friction surfaces on vtheir exterior lperiphery with which brake bands y42 and 43 cooperate, these bands being operated# fby suitabley levers 44y and 4-5 carried bythe* rear end of the machine frame.

Cooperating with the feed operating member 38y and the takeup member 39 is the ilexikible feeding'niember orchain' 3. Herein with the machine operating from the rig-ht hand portion ofthefchain3 extends from a suitable anchor, not shown, at the left hand rib alongv the face beneath a transposable front v l guide 46,* then rearwardly 'and upwardlyy around an idler sprocket 47 beneath the feet operating member 38 and-then upwardly and transversely across the top ofthe machine in a guide channel 48 and thon downwardly be- 'neath the takeup member 39 and forwardly j andupwardly 'over an idler sprocket 49 and hence rearwardly over a guide roll 50 and 'around guide rolls 51 and'52 rotatable on Y K vertical axes 'at the rear end of the machine frame, the receding portion of the chain eX ten-ding rearwardly to a suitable anchor,A not fshown, at theright hand rib in a well known under control of the brake ban-d'42.

manner. I

, Leonesa manner. lt will also be evident :that with such a construction it is made possible to 0perate the feeding and cutting mechanism inV thefmachine frame..y llt will herein further be noted that a `sprocket- .shown in dotted lines in F 1g. l'may also be detachablyj secured to the takeup member 39 to drive thetransport truck ina well known manner 'and Y that a suitable starting and stopping controller i-s provided for the motor 6, as indicated at 56. ln 'the operation of my improved construction the machine when unloaded from its transport truck, not shown, is preferably brought up toa position adjacent the face at the right hand rib of the coal and the advancing 'portion of the chain 3 isV th-en attached to a suitable jackat the left hand rib while the recedirov portion is attached to a suitable jack 't ALLju at the right hand rib 1n the usual manner. The motor is'then started and the cutter chain clutchthrown in to actuate the cutter chain 1n the desired direction. The aw clutch 34 is V'then thrown out and the aw clutch 35thrown in whereupon by applying `the friction clutch 31 lthe bar is sumped or fed in under the coal, the takeup member 39 drawing in the chain at a slow or'cutting speed while the feed operating member .38 slowly pays it outV the'sumping cut is completed the Vjaw clutch 35 is thrown out and the clutch 34 is thrown in andvby then applying thefri'ction 31 the machine is caused to, cut transversely across the face at a cutting speed. Whenthermachine reaches the end of its transverse cut it is angledand backed outrin .a well" known As a result ofmyinven-tion it will herein be notedthatas "a result of a possibility of employing a motor constantly rotating in. the

same direction it is mad-e possible to eliminate an-ynecessity'for'the provisi-on of a mechanismtherefor, the motor being, capable of being controlled through the* simple stopping or starting controller 56'. VAttention is also directed tothefactthat inasmuch as themotor may operate continuously at full speed whenV desired, i. e., not only during cutting but duringun-loading, loading, vand transport, it is made'po'ssible not only toelimreversible motor or complicated reversing inate the difficulties arising from making and i breaking Lof circuit connection-s and thereby rigid cutter bar extending forwardly lengthrender the machine more safe in gaseous mines but also to simplify the controlling mechanism., These and Aother advantages of my invention will, however, be clearly apparent to those skilled in the art.

While .I have in this application specifically described one form which my invention may assume in practice, it will be understood that this form of the same is shown for purposes of illustration and that the same may be 'modified and embodied in various other forms without departing from its spirit or theV scope of the appended claims.

That I claim as new Vand desireto secure Vby Letters Patent is l.' In a mining machine, a transversely disposed electric motor, reversible cutting mechanism, feeding mechanism including a feed operating member and a talreup member, each of said members having the same mode of operation during either operation of said cutting mechanism, flexible feeding means cooperating with said members, and means to drive said cutting-mechanism and the machine during cutting in either direction without reversing said motor.

' 2. In a mining machine, a driving motor disposed at the forward end of the machine, feeding mechanism driven thereby including a transversely disposed shaft, means Vto drive said shaft from said motor at a plurality of predetermined speeds, means to vary said speeds, a feed operating member and a takeup member, and means to releasibly connect the same-to said shaft. p

3. In a mininemachme, a driving motor disposed at-the forward end of the machine,

feeding mechanism driven thereby including fast and slow speed gearing, a transverse shaftV driven thereby, friction means to vary Vthe speed of said shaft, a feed operating member and a talreup member, means to connect said members to said shaft, and friction means to control said members when released therefrom.

4. In a mining machine including a ma- -chine frame, a driving motor carried by the forward end thereof, cutting mechanism driven thereby including a driving element for said cutting mechanism disposed at the rear of said motor and a rigid cutter barextend- Ving forwardly lengthwise of the machine frame during cutting, and feeding means driven by said motor including a feed member and a takeup member independently or simultaneously rotatable by power in the same direction at different speeds.

5. In a mining machine, a motor disposed at the forward end of the machine, cutting mechanism driven by said motor including a wise of the machine during cutting, and feedingmechanism driven by said motor including a shaft disposed transversely of the machine, Vand fast and slow speed friction operincluding a transversely disposed horizontal shaft, a feed member and a talreup member disposed coaxially with said shaft, and fast and slow speed friction operating clutches for said members arranged coaxially with said shaft.

7 In a mining machine, a motor disposed at the forward end of the machine, cutting mechanism driven by said motorincluding a rigid cutter bar extending forwardly lengthwise of the machine during cutting, and feeding mechanism driven by said motor including a horizontal shaft, feed and takeup members arranged coaxially with said shaft, fast and slow speed friction clutches arranged coaxially with said shaft for controlling said members, and controlling clutches interposed between said members and said clutches.

8. In a mining machine, a driving motor disposed at the forward end of the machine, cutting mechanismfdriven by said motor including a rigid cutter bar extending forwardly lengthwise of the machine during cutting, feeding mechanism driven by said motor including a feed operating member, and mechanism for enabling the machine to cut in opposite directions in accordance with the room and pillar system of mining without reversing said motor or the direction of rotation of said feed operating member.

9. A mining machinehaving reversible cutting mechanism thereon including a rigid cutter bar extending forwardly lengthwise of the Inachine during cutting, feeding mechanism thereon including a feed operating member and a talreup member, said members having the same mode of operation in either direction of cutting of said mechanism, a driving motor disposed at the forward end of the machine, and mechanism for enabling the machine to cut in opposite directions in accordance with the room and pillar system of mining' without reversing said motor or reversing the direction of rotation of said feed operating and take-up members.

10. A mining machine having cutting ance with the room and pillar system of min-` .ii'ig/ without chang-in g the arrangement of said flexible means on said members.

'11. A mining machine having reversible cutting mechanism-thereon including a rigid cutter bar extending forwardly longitudinally ofthe machine during cutting, feeding mechanism thereon including afeed operating member yand a power driven tak-cup member and flexible feeding means cooperating therewith, said feed. operatinginember and takeup memberboth being rotatable at siinilar cutting speeds to windin said flexible means, Va driving motoridisposed at the forward end of theinachine, and mechanism for enabling said. machine to cut in opposite directions in accordance with the room and pillar system of mining without reversing said motor.

.12.21A mining-machinezhaving .reversible lar system of mining.

V13'.' A mining machine normally slidable upon amine bottom having cutting mecha- .nism thereonincluding a rigid cutter bar extending forwardly longitudinally of themay.chine during cutting, feeding. mechanism thereon including a feed operating member and a power driventakeup member and flexile feeding means cooperating therewith, both said feed loperating member and talre- V up member being rotatable at a plurality; of

speeds including a cutting speed to wind in said flexible means,a driving motor disposed at thef forward endl yof the fmachi'nef, and

mechanism enabling said machine tol cut in opposite directions in accordance with the room and pillar system of'mining without reversing said motor.

. 514i. A mining machine normally slidable upon amine bottom having cutting mechanism thereonincluding a rigidcutterfbar; ex-

tending Vforwardly longitudinally ofl the v machine .during cutting, feeding mechanism thereon including a feed operating member and a talreup ymember and flexible r feeding means cooperating therewith, a motor l disposed at the forward end of the machine for driving said mechanisms,y andi mechanism for enabling said machine to cutin opposite directions in accordance withthe room and pillar Vsysteinof mini-ng without rreversing said members or changing the arrangement.

of said flexible means on said members.

15. Av mining machine. normallyk slidablel upon ai mine bottom having cutting mechanismfthereon includingv a rigid, cutter bar and a controllingmeinberjand flexible feeding'- ymeans cooperating therewith, a motor disposed at the forward end of the machine for v,driving said mechanisms, and. mechanism for enabling said machine to cut in oppillar system of mining without revers- -fing'rsaid motor or said members and without changing the arrangement of said flexible Ameans on said members. i j i I 16. A mining machine normally slidabl'e iiponamine bottom having cutting-mechanism thereon including a rigid cutter -bar extending forwardly longitudinally of themachine during cutting, feedingV mechanism thereon including a feedk operating member and a takeupmember and flexible feeding Vmea-iis cooperating therewith, a motor disposed at the forward end of the machine for driving said mechanisms, and mechanism for enabling said machine. to cut in opposite directions in accordance with the roomy and Vpillafrrsystem of mining without reversing said members or said motor or changing the arrangement of said flexible means on said -menibera extending forwardlylongitudinally of the 'machine during cutting,` feeding mechanism .thereon including afeed operating member ipesite directions in accordance with the room 17; A mining machine normally slidable upon a mine bottom comprising cutting mechanism including a longitudinally pro- ]ecting vcutter bar extending forwardly of the machine during cutting, feeding mechanismY including a feed loperatingY member, a

vdriving motor disposed at the forward end ofthe machine, mechanismv for driving said cutting mechanism in opposite. directions without reversing said motor, a flexible feedingmember cooperating with said feed operr'ating member, and means for feeding said machine in opposite directions in accordance withl the roo-iii and pillar system of nii-ning without reversing said feed operating mem-` ber or changing the arrangement of said Hexible member on said feed 'operating member.

18. In a mining machine, a drivingmotorl disposed at t-lie forward end of the machine,

Y cutting mechanism driven thereby including `a lon, "itiiclinallyy projecting rigid cutter bar extending forwardly of the machineduring fcuttiiig, a feed operatingmeinber and atakeup member, flexible feedingv means cooperating therewithhaving free end portions adapt-- ed to be drawn` in by diifereiitniembers relative thereto, and means driven bysaid motor adapted to actuate either member to Vwind in either portion at variable speeds or at the same speed without reversing said motor.

v 19. In ainining machine, a motor disposed at the forward end" ofthe machine, cutting mechanism driven thereby' includ-ing a driving element for said cutting mechanism disposed .at the rear of said motor and arigid cutter bar extending forwardly of the machine during cutting, a feedloperating mem! ber, a taleup member, a continuous flexible feeding member` cooperating therewith lhaving free end portions adapted to be drawn in by different members relative thereto, and means driven by said motor adapted to actuate either membcrto wind in either portion ativariable speeds or at the same predetermined speed. i i

20. In a mining machine, a motor disposed at the'ferward endof the machine, cutting mechanism driven thereby including a rigid cutter bar extending forwardly longitudinally of tliemachine during cutting, and feeding mechanism driven by said motor including a t'ransverseshaft, a feed operating member, a talreup member, andmeans to connect` said members directly. to said shaft, and Jfriction means for controlling said members when released from said shaft. w

21;#InaV mining machine, a frame slidable on the-mine bottom during cutting and supporting a motor, said motor being disposed at the` forward end of the machine, cutting mechanism driven bysaid motor including a rigid cutter bar extending forwardly longitudinally of the machine during cutting, and driving means for said cutting mechanism including a transverse shaft, a feed operating mechanism driven by said motor including a transverse shaft, a feed operating member, means for connecting said member to said secondmentioned shaft, and friction means for controlling said member when release( from said second mentioned shaft.

22.V In a mining machine, a motor disposed atv the forward end of the machine, cutting mechanism driven by one end of said motor including a'rigid cutter` bar extending forwardly longitudinally of the machine during cutting and feeding mechanism driven by said end of said motor including a transverse shaft, a`` feed operating member, a talreup j member, and releasable means for connecting said members directly `to said shaft.

23. In a mining machine, a motor, and cutting andfeeding mechanisms driven by said motor including parallel horizontal cutter j and'feed drivingshafts disposed at the rear thcreofand independently operable feed operating and take-'up'members driven through said shafts.

24. In a mining machine, a driving motor, and cuttingmechanism driven by said motor including fa cutter bar projecting in advance of said motor and a transverse shaft disposed in ahorizontal plane in the rear of said motorfand a reversingmechanism for said cutting mechanism arranged coaXially with said shaft.` y

25. In a mining machine, a frame slidable on the mine bottom during cutting and supporting a driving motor, reversible cutting mechanism driven by said motor including a shaft extending transversely of the machine feeding means driven by said motor including feed gearing driven by said transverse shaft.

26. In a mining machine,` a frame slidable on the mine bottom during cutting and supporting a driving motor, reversible cutting mechanism driven by said motor including a shaft extending' transversely of the machine and a clutch disposed coaxially therewith, reverse gearing driven thereby, and mec-.ns for selectively connecting said gearing to said shaft, and feeding mechanism driven by said motor including feed gearing driven by said transverse shaft.

27. In a mining machine, a frame slidable on the mine bottom during cutting, a motor on said frame, reversible cutting mechanismdriven by said motor including a shaft disposed parallel with the axis of said motor, and feeding means driven by said motor including feed gearing arranged coaxially with said parallel shaft.

28. In a mining machine, a frame slidable on the mine bottom during'cutting, a motor on said frame, reversible cutting mechanism driven by said motor including a shaft disposed parallel with the axis of said motor, and feeding means driven by saidmotor including fast and slow speed gearing including gears arranged coaxially with said parallel shaft.

29. In'a mining machine, a driving motori disposed at the forward end of the machine, and reversiblev cutting mechanism driven thereby including a driving element` therefor disposed at the rear of said motor and a forwardly projecting rigid cutter bar eX- tending in advance of `said motor, a shaft extending transversely of the machine, and a clutch disposed coaxially therewith, said clutch being shiftable in opposite directions relative to said shaft for effecting drive of said cutting mechanism in opposite directions.

30. In a mining machine, a drivingV motor disposed at the forward end ofthe machine,A

reversible cutting mechanism driven thereby and including a driving element therefor` disposed at the rear of said motor and a forwardly proj eeting rigid cutter bar extending in advance of said motor, a shaft extending transversely of the machine, a clutch disposed coaXially therewith, reverse gearing posed at the forward end of the machine, mechanisniV for vdriving said cutting mechato said transverse shaft for drive by the latter.

32. In a mining machine, a machine frame slidable 0n its bottom onthe mine bottom, a

l5 Vmotor having but a single rotor and having said rotor extending transversely of the machine, reversible cutting mechanism driven thereby including a forwardly projecting rigid cutter `bar and a shaft disposed parallel with the aXis of said rotor, and feeding means driven by said motor operatively connected to said transverse shaft.

33. In a mining machine, a driving motor disposed at the forward end of the. machine, feeding-mechanism driven thereby and .disposed at the rear thereof including a transversely `disposed shaft, means to drive said shaft from said motor at a plurality olf predeterminedspeeds,.means to vary saidlspeeds, .a feed operating member and laStake-.upmem.- ber, and means to vreleasably connect .said members to said shaft.

34. A. mining machine normally laterally slidable upon amine :bottom during cutting comprising cutting mechanism .including a forwardly `projecting rigid .cutter ibar, feeding .mechanism including a feed operating member, a ydriving motor .disposedat the forward end of the machine, mechanism .for

directions without reversing said motor, a flexible `feeding member' cooperating with said feed operating member, and means for feeding sa-id machine in opposite vdirections inaccordance with/the room and pillar system `of miningw-ithout reversing said feed operating-member or changing the arrangement Vof said-flexible member onl said'feed operating member. f

35. A ymining machine normally ilaterally slidable upona mine bottom during cutting comprising cutting mechanism including a forwardly projecting rigid cutter bar, feeding mechanism including a plurality of feed operating members, a driving motor dis nism in opposite directions without reversing said motor, flexible feeding means having feeding portions coopera-ting with'fsaid feed operating members, and means for feeding said machine in opposite directions Yin accordance with the roem and pillar lsystem of mining without reversing jsaidfeed operating'membersl orchang-ing the arrangement 36. In a mining machine, adriving motor disposed at the forward end of th-e machine, cut-ting mechanism including a rigid forwardly projecting cutter bar, means for drivflexible feeding means on sai-d meming said cutting mechanism from said motorl includingl ay driving `element therefor disl posed .at :the rear end of .the latter, feeding mechanism lincluding ta rotatable .feed operdriving said cutting mechanism in :oppositev ating member .and-'a' rotatable .take-.up member andcooperating flexible feeding portions, one adapted to lbe woundin :by .each member, and positively operable means driven by said motor adapted to rotate said members simultaneously in a similar 'manner to windv in at a plurality vof speeds.

37. .In a mining machine, :a drivingmotor, j

reversible cuttingmechanism driven thereby including mechanism disposed at :the vrearof 38.A In a mining machine, -a :driving anoto disposed at the lforward end `of the machine, cutting mechanism driven by said motor 1in.-

cluding a yrigi'd'cutter :bar .extending yforf wardly longitudinally y.ozf'ithe machine during cutting, means driven by said motor for feeding said machine laterally during cutting including fast and slow speed gearing,.a transverse shaift driven thereby, `friction means to vary Ithe speedoffsaid shaft, Vafeed operating member and a take-up member,

means to .simultaneously 'connect-said members =to said shaft for `rotation therewithpand friction means .to control :said members when released from said shaft.

39. In a mining machine, a driving motor disposed at :the forward :end .of the machine, cutting mechanism driven by said .motor including a rigid cutter bar extending forwardly longitudinally of the machine during cutting, .-meansflriven-iby said motor for feeding' said .machine laterally' during .cutting including 'fast and slow speed gearing, a transverse shaft driven thereby, :friction means `-to vary the-'speed of said lsli-aft, a feed operating member and a take-up member, means to either selectivelyor simultaneously connect said lmembers xto said shaft for .rotation therewith, and friction means Ato control said members when released fromsaicl shaft. 40. A mining machine normally slidable upon a mine `bottom having :cutting mecha.-

nism thereon including` a rigid cutter bar extending .forwardly longitudinally `of lthe machine duri-ng cutting, feeding mechanism thereon including a feed .operating member and a take-up member disposed on axesv eX.- tending transversely ozf-themachine., a lmotor disposed at the forward end ofthe machine for driving saidA mechanisms, and mechanism for enabling said machine =to cut in opposite directions inaccordance with the room and pillar system of mining without reversing said members. s,

4l. In al room and pillar mining machine. a frame slidable on its bottom 0n `the mine bottom, a motor carriedthereby atthe forward end thereof, reversible cutting mecha.- nism driven by said motor including a .drivl (lll bottom, a motor carried thereby at the forward end thereof, cutting mechanism driven by said motor including a driving element therefor disposed at the rear of said motor and a rigid cutter bar extending forwardly lengthwise of the machine during cutting, and feeding mechanism driven by said motor including a transversely disposed shaft,

means to drive said shaft at a plurality of predetermined speeds, means to vary said speeds, and a feed operating member and a take-up member, and `means for releasably connecting said members to said shaft for rotation therewith. v

43. In a room and pillar mining machine, a frame slidable on its bottom on the mine bottom, a motor carried thereby at the forward end thereof, cutting mechanism driven by said motor including a driving element therefor disposed at the rear of said motor and a rigid cutter bar extending forwardly lengthwise of the machine during cutting,

, and feeding mechanism driven by said motor including fast and slow speed gearing, a transverse shaft driven thereby, friction means to vary the speed of said shaft at any speed, a feed operating member and a takeup member, means te connectsaid members and said shaft, and friction means to 4control said members when released from said shaft.

44. In a mining machine, a machine frame slidable on its bottom on the .mine bottom, a motor on said frame, cutting mechanism driven by said motor including a transverse shaft arranged between the motor and one end of said frame, and feeding mechanism driven by said motor including a feed operating member and a take-up member, said members being relatively rotatable and adapted to cooperate with fiexible feeding means, and operative driving connections between said transverse shaft and said mem-` bers.

45. In a: room and pillar mining machine, a machine frame slidable on its bottom on the mine bottom, a motor on the forward end of said frame, cutting mechanism driven by said motor including a rigid cutter bar extending forwardly lengthwise of said frame during cutting, said cutting mechanism also including a transverse shaft located rearwardly of said motor, and feeding mechanismV driven by said motor including a feed operating member and a take-up member, and operative driving connections between said transverse shaft and said members.

46. In a room and pillar mining machine, a machine frame slidable on its bottom on the mine bottom, a motor on the forward end of said frame, cutting mechanism driven by said motor including a rigid cutter bar cxtending forwardly lengthwise of said frame during cutting, said cutting mechanism also including a transverse shaft located rearwardly of said motor, and feeding mechanism driven by said motor including a feed operating member and a take-up member, and operative driving connections between said transverse shaft and said members including a transverse shaft arranged in the rear of and parallel with said first mentioned shaft. l

47. In a room and pillar mining machine, a machine frame slidable on its bottom on the mine bottom, a motor on the forward end of said frame, cutting mechanism driven by said motor including a rigid cutter bar extending forwardly lengthwise of said frame during cutting, said cutting mechanism also including a transverse shaft located rearwardly of said motor, and feeding mechanism driven by said motor including a feed operating member and a take-up member, and operative driving connections between said transverse shaft and said members ineluding a transverse shaft arranged in the rear of and parallel with said first mentioned shaft, and fast and slow speed clutches arranged coaXially with said last mentioned shaft.

48. In a room and pillar mining machine, a machine frame slidable on its bottom on the mine bottom, a motor on the forward end of said frame, cutting mechanism driven by said motor including a rigid cutter bar eX- tending forwardly lengthwise of said frame during cutting, said cutting mechanism also including a transverse shaft located rearwardly of said motor, and feeding mechanism driven by said motor including a feed operating member and a take-up member, and operative driving connections between said transverse shaft and said members including a transverse shaft arranged in the rear of and parallel with said first mentioned shaft, said feed operating member and takeup member being arranged coaxially with said last mentioned shaft.

49. In a room and pillar mining machine, a machine frame slidable on its bottom on the mine bottom, a motor on the forward end of said frame, cutting mechanism including a rigid cutter bar extending forwardly longitudinally of said frame duringjcutting and driving means for said cutting mechanism including a transverse shaft located zeA aai

rearwardly ofgsaid motor, and feeding means drivenv by said motor including a transverse shaft arranged parallel with and rearwardly of said shaft, fast and slow speed driving 'connections between said lfirst shaft and vsain second shaft, anda plurality of relatively rotatable feed operating membersy driven by said second shaft.

50. `In room and pillar mining machine, 'aV machine vframe slidable on its bottoni on the mine bottom, a motor on the forward end of said frame, cutting-,mechanism including a rigid cutter. bar extending forwardly longitudinally of said fra-mediiring cutting, and

'driving means fory said cutting mechanism l 5l. In a room and pillarmining machine,y

a machine frame slidable on its bottoni on the mine bottom, a motor on the forward end of said frame, cutting mechanism including a rigid cutter bar extending forwardlylongitudinallyof said frame during cutting, driving means for said cutting mechanism including transverse shaft Y located Arearwardly of said-motor .and aireversing mech-- lan-ism for Isaid cutting mechanism including gears arranged coaxially with said shaft, and feeding means driven by said motor including a -transverse shaft arranged parallel with and rearwardly of said shaft, fast and slow speed driving connections between said fir-st shaft and said second shaft, and a pluality of .relatively'rotatable feed operating members drivenby said second shaft;

52. Ina. room and pillar mining machine, the combination with ya main frame adapted to rest uponfand slide in any directionover the Imine bottom, of cutting mechanism including an elongated lrerf cutter projecting forwardly lengthwise of said frame `during cutting, and .a driving element for said cutting mechanismV disposed at rthe rear end of said frame, a plurality of rotatable feed operating* members mounted upon Y said frame Vwith their aires extending transversely thereof, power devices upon the fra-me, and control mechanism adapted to connect said feed operating members'with said power devices toy cause saidV members to revolve in winding direction either simultaneously or separately at relatively highy speed" or at relatively low speed, and a clutch mechanism for each feed operating member and adapted to connect said members separately or-'simultaneously with said power devices and to perm-it rotation ofsaid feed operating meinbers independently of each other.

In a room and pill r mining machine,

vices tocause said menibersto revolve inl winding direction either ysimultaneously or separately at relatively high speedor atY relatively low speed or to permit them to revolve in theiinwindi-ng direction under frictionally cont-rolled resistance, and mea-ns to control theactuation of each ofl said members independently of each other.

5 4. In a room and pillar mining machine, the combination with amain frame adapted to rest upon and slide in any directionover a mine bott-om, of cutting mechanism including' an elongated rigid lrerf cutter. projecting forwardly longitudinally of said frame ydur-l ing cutting and a driving element for said cutting mechanism disposed at the rear end of said frame, a plurality of feed operating members mounted on said frame with their axes extending transversely thereof and adapted to cooperate with flexible' feeding means, power devices on said frame, control mechanism adapted to connect said feed operating members with said power devices to cause said members` to revolve in winding direction either simultaneously or separatelyat-relatively high speed or at relatively low speed or to permit them to revolve in the unwinding direction under. frictionally controlled resistance or to permit them to revolve in unwinding direction without such resistance, and meansto control the. actuation of each of said members independently of each other. i

v55. In a mining machine, a frame slidable on its bottom onthe mine bottom, a motor carried by said Vframe and havinga horizontal po-wer shaft, reversibleV cutting mechanism driven by said motor including a forwardly projecting rigid cutter bar, and driving means for said cutting mechanism including a shaft disposed parallel with said motor. power shaft, and feedingmeans driven by said motor operativelyl 'connectedrto said secondnientioned shaft and including a feed operating member adapted to cooperate with flexibleifeeding means.

56. In a mining machine, a frame slidable on its bottom on the mine bottom, a motor icc llO

CTI

carried by said frame at the forward end thereof and having a driving element, cut- A thereof, a cutter bar projecting forwardly in advance of said motor, and mechanism for effecting reversal of said cutting mechanism while said motor driving element rotates in only one direction, and feeding means driven by said motor including a power operated feed operating member and a relatively rotatable power operated control member each adapted to cooperate with flexible feeding means.

57. In a mining machine, a frame slidable on its bottom on the mine bottom during the cutting operation, a motor carried thereby, cutting mechanism carried by said frame and driven by said motor including a forwardly projecting cutter bar and driving means for said cutting mechanism including a transverse shaft, and reversing mechanism between said shaft and cutting mechanism whereby the latter may be driven in opposite directions without reversing said motor, and feeding means driven by said motor including a shaft parallel with said transverse shaft and driven by the latter, plural speed transmission mechanism operatively connecting said shafts including fast and slow speed friction clutches coaxial with said parallel shaft, a feed operating member and a controlling member each adapted to cooperate with flexible feeding means, and means for simultaneously or separately operatively connecting said members to said parallel shaft.

58. In a mining machine, a frame slidable on its bottom on the mine bottom during the cutting operation, a motor carried thereby, cutting mechanism carried by said frame and driven by said motor including a forwardly projecting cutter bar and driving means for said cutting mechanism including a transverse shaft, and reversing mechanism between said shaft and cutting mechanism whereby the latter may be driven in opposite directions without reversing said motor, and feeding means driven by said motor including a shaft parallel with said transverse shaft and driven by the latter, plural speed transmission mechanism operatively connecting said shafts including fast and slow speed friction clutches coaxial with said parallel shaft, a feed operating member and a controlling member arranged on axes parallel to a line parallel with said parallel shaft and each adapted to cooperate with flexible feeding means, and means for simultaneously or separately operatively connecting said members to said parallel shaft.

59. In a room and pillar mining machine, the combination with a main frame adapted to rest upon and slide in any direction over the mine bottom, of cutting mechanism including an elongated kerf cutter projecting forwardly lengthwise of said frame during cutting and a driving element for saidcutting mechanism disposed at the rear end of said frame, a plurality of rotatable feed operating members mounted upon said frame,

and each adapted to cooperate directly with flexible feeding means, power devices on said frame, and control mechanism adapted to connect said feed operating members with said power devices to cause said members to revolve in winding direction either simultaneously or separately at relatively high speed or at relatively low speed, and a clutch mechanism for each feed operating member and adapted to connect said members .separately or simultaneously with said power devices and to permit rotation of said feed operating members independently of each other.

60. In a room and pillar mining machine. the combination with a main frame adapted to rest upon and slide in any direction over a mine bottom, of cutting mechanism including an elongated rigid kerf cutter projecting forwardly longitudinally of said frame during cutting and a driving element for said cutting mechanism disposed at the rear end of said frame, a plurality of feed operating members mounted on said frame and adapted to cooperate directly with flexible feeding means, power devices on said frame, control mechanism adapted to connect said feed operating members with said power devices to cause said members to revolve in winding direction either simultaneously or separately at relatively high speed or at relatively low speed or to permit them to revolve in the unwinding direction under frictionally con trolled resistance, and means to control the actuation of each of said members independently of cach other.

61. In a room and pillar mining machine, the combination with a main frame adapted to rest upon and slide in any direction over a mine bottom, of cutting mechanism includ ing an elongated rigid kerf cutter projecting forwardly longitudinally of said frame during cutting and a driving element for said cutting mechanism disposed at the rear end of said frame, a plurality of feed operating members mounted on said frame and adapted to cooperate directly with flexible feeding means, power devices on said frame, control mechanism adapted to connect said feed operating members with said power devices to cause said members to revolve in winding direction either simultaneously or separately at relatively high speed or at relatively low speed or to permit them to revolve in the unwinding direction under frictionally controlled resistance or to permit them to re-` volve in unwinding direction without such resistance, and means to control the actuation of each of said members independently of each other.

62. In a mining machine including a mail 'In testimony whereof I aiix my signature.

chine frame, a driving motor .carried by the forward end thereof, cutting mechanism driven thereby including a driving element for ,said cutting mechanism disposed at the rear of said motor anda rigid cutterbar extending forwardly lengthwise of the machine frame during cutting, andl feeding means Y driven by said motor including a feed member and a take-up member independently or simultaneously rotatable by power` in the same ,direction and at widely different speeds respectively adapted for cutting feed and for machine moving, while they cutting mecha-4 nism is driven lat a substantially uniform rate.

CHARLES F. -osGooD.

CERTlFiCATE 0F CORRECT N.

Patent No. 1,801,239. Granted Aprill/l, 1931, to

CHARLES F. OSGOOD.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 4, lines 25 to 27, claim 12, strike out "said feed operating and takeup members both being rotatable at a similar cutting speed, and insert instead and 'flexible -feeding means cooperating therewith, said feed operating and takeup members both being rotatable at similar cutting speeds to wind in said flexible means; and that the said vLetters Patent should be read with this correction therein that the samemay con.-

orm to the record of the case in the Patent Office.

Signed and sealed this 15th day oi'Decernoer, A. D. 1931.

M. J. Moore, (Seal) Acting Commissioner oi Patents. 

